Health-Related Quality of Life in Community-Dwelling Older People with Cognitive Impairment: EQ-5D-3L Measurement Properties

Article type: Research Article

Authors: Pérez-Ros, Pilar^{a; b; c; *} | Vila-Candel, Rafael^{a; d; e} | Martin-Utrilla, Salvador^{a; b; f} | Martínez-Arnau, Francisco M.^{c; g}

Affiliations: [a] Department of Nursing, Universidad Católica de Valencia San Vicente Mártir, Valencia, Spain | [b] GRICPAL Research Group, Universidad Católica de Valencia San Vicente Mártir, Valencia, Spain | [c] Frailty and Cognitive Impairment Research Group (FROG), Universitat de València, Valencia, Spain | [d] Department of Obstetrics and Gynecology, Hospital Universitario de la Ribera, FISABIO, Valencia, Spain | [e] Department of Nursing, Faculty of Nursing and Podiatry, Universitat de València, Valencia, Spain | [f] Palliative Care Unit, Valencia Institute of Oncology, Valencia, Spain | [g] Department of Physiotherapy, Universitat de València, Valencia, Spain

Correspondence: [*] Correspondence to: Pilar Pérez-Ros, Espartero 7, 46010 Valencia, Spain. Tel.: +34 963637412 4262; E-mail: pilar.perez@ucv.es.

Abstract: Background:Assessing quality of life (QoL) in older people with cognitive impairment is a challenge. There is no consensus on the best tool, but a short, user-friendly scale is advised. Objective:This study aimed to assess the psychometric properties of the self-reported and generic EQ-5D (including the EQ index and EQ visual analog scale [VAS]) in community-dwelling older adults with cognitive impairment. Methods:Cross-sectional study analyzing the feasibility, acceptability, reliability, and validity of the EQ-5D based on 188 self-administered questionnaires in a sample of community-dwelling older adults with Mini-Mental State Examination (MMSE) scores of 10 to 24 points. Results:The EQ index was 0.69 (±0.27) and the EQ VAS was 63.8 (±28.54). Adequate measurement properties were found in acceptability and feasibility. Cronbach’s alpha was 0.69. Good validity was observed in the correlation of each dimension of the EQ-5D with geriatric assessment scales. Higher validity was observed for the EQ index compared to the EQ VAS. Conclusion:The EQ-5D scale could be a good tool for assessing health-related QoL in community-dwelling older adults with cognitive impairment, though it is necessary to assess the dimensions and the EQ index.

Keywords: Cognitive impairment, community-dwelling, measurement, older people, quality of life

DOI: 10.3233/JAD-200806

Journal: Journal of Alzheimer's Disease, vol. 77, no. 4, pp. 1523-1532, 2020